Vulcan binder chain tie down with grab hooks grade 80 3 8 inch x 20 foot 7 100 pound safe working load.
Grade 80 chain sizes.
Chain grade 80 3 8 size 10 ft 7100 lb.
That number is the chain grade.
Grade 100 chain has a 20 percent increase in working load limit as compared to a similar size chain in grade 80.
Nacm welded steel chain specifications adopted april 26 2003 6 8 1 1 5 16 8 7 mm and 3 8 10 mm grade 43 and 70 chain shall be embossed at intervals no greater than 1 ft.
You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade.
Grade 100 chains are also referred to as grade 10 system 10 spectrum 10.
Nobles grade 80 chain is manufactured from high quality high tensile alloy steel and is hardened and tempered to produce a chain with a load bearing capacity in excess of three times that of mild steel chain.
This chain complies with the mechanical properties and testing requirements of as 2321 for lifting chains.
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It is the most economical of the three chain grade types that are suitable for overhead lifting grade 80 grade 100 grade 120.
Lacled alloy chain and attachments offer a design strength and elongation surpassing the national association of chain manufacturers nacm specifications as shown in the following charts.
So grade 80 is really 800 and grade 120 is 1 200.
Laclede alloy grade 80 100 chain and attachments are produced to exceed the rigorous requirements of overhead lifting.
5 0 out of 5 stars 2.
Grade 80 chain also meets bg dguv requirements and is stamped with an h55 approval number.
Large diameter grade 80 alloy chain is also available upon request.
Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.
Grade 80 chain has one of the highest strength to weight ratios in the industry and meets or exceeds all existing osha government nacm and astm specification requirements.
Grade is intended to indicate the strength and tolerance of welded steel chains.
Determining chain working load limits.
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Alloy chain grade 80 or grade 100 should be used for overhead lifting.
All other grade 30 43 70 80 and 100 chains shall be embossed at.
This allows you to reduce the size of the chain depending on the working load needed.
Grade 80 chain is a heat treated alloy steel designed for high strength for overhead lifting and tie down applications.
Other grades are determined by manufacturers.
Astm states that alloy chain shall be able to elongate a minimum of 20 before fracture 7 3 5.
